Debrief of the Fourth Troubleshooting at Bank of POLONA Ltd. • Trouble Ticket Overview • Example of Troubleshooting Flow: PC0 Does Not Have Connectivity to IPv6 Internet Sites • Troubleshooting OSPF for IPv6 • Example of Troubleshooting Flow: Totally Stubby Area on the Branch Is Not Working • Troubleshooting OSPF Stubby Areas

Debrief of the Second Troubleshooting at RADULKO Transport Ltd. • Trouble Tickets Overview • Example of Troubleshooting Flow: PC1 and PC2 Do Not Have Connectivity to the Internet • Troubleshooting VTP • Example of Troubleshooting Flow: BR Does Not Have Connectivity to the Internet Via IPv6 • Troubleshooting EIGRP for IPv6 • Example of Troubleshooting Flow: IPv6 BGP Is Not Established to ISP2 • Troubleshooting MP-BGP